家电科技 ›› 2021, Vol. 0 ›› Issue (zk): 451-454.doi: 10.19784/j.cnki.issn1672-0172.2021.99.107

• 第五部分 健康适老与智能 • 上一篇    下一篇

锰氧化物室温催化降解甲醛的研究及应用

杨翠霞, 陈新厂, 杨平, 黄宇君, 杨大伟   

  1. 广东美的制冷设备有限公司 广东佛山 528300
  • 发布日期:2021-12-22
  • 作者简介:杨翠霞(1987—),女,毕业于武汉大学大学物理化学专业,现任广东美的制冷设备有限公司先行研究主任工程师。研究方向:空气净化、水净化等领域的研究。

Research and application on catalytic degradation of formaldehyde by manganese oxide at room-temperature

YANG Cuixia, CHEN Xinchang, YANG Ping, HUANG Yujun, YANG Dawei   

  1. GD Midea Air-Conditioning Equipment Co., Ltd. Foshan 528300
  • Published:2021-12-22

摘要: 甲醛气体作为室内的主要污染物之一,严重侵害着人类的身体健康,目前已被世界卫生组织列为致癌和致畸性物质。室温催化降解技术是在室温条件下将甲醛气体完全降解为CO2和H2O且无需提供额外能量,是一种适合应用于家居环境的除醛技术。锰的氧化物由于其价态多变、资源丰富、价格低廉以及优异的催化性能等,常被应用于催化降解甲醛的研究中。在本文中,通过氧化还原沉淀法合成了δ-MnO2催化剂,并探讨了其催化降解甲醛活性和机理,最终将其应用在空调产品中,实现对空间甲醛气体的去除净化功能。

关键词: 甲醛, 室温催化, δ-MnO2, 空调

Abstract: Formaldehyde (HCHO), one of the main indoor pollutants, has been listed as carcinogenic and teratogenic substances by the World Health Organization, which poses a serious threat on human health. The catalytic technologies for HCHO removal at room temperature can fully degrade HCHO into CO2 and H2O without additional energy, which is suitable for HCHO removal in home environment. Because of its variable valence state, abundant resources, low price and excellent catalytic performance, manganese oxide is often used in the study of catalytic degradation of HCHO. In this paper, δ-MnO2 catalyst was synthesized by REDOX precipitation method, and its catalytic activity and mechanism of HCHO degradation were discussed. Finally, it was applied in air conditioning products to achieve the purification of HCHO in room.

Key words: Formaldehyde, Room temperature catalysis, δ-MnO2, Air conditioner

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